66746992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{320899}}^1$

素因数の和:320920

約数の個数: 20

約数和(自身を含む): 139270600

約数和(自身を除く): 72523608

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 320899, 641798, 1283596, 2567192, 4171687, 5134384, 8343374, 16686748, 33373496, 66746992]

約数ペア:

[(1, 66746992), (2, 33373496), (4, 16686748), (8, 8343374), (13, 5134384), (16, 4171687), (26, 2567192), (52, 1283596), (104, 641798), (208, 320899)]